| Ferdi Vierklau | |
| Fullname: | Ferdinand Rudols Marcel Vierklau |
| Birth Date: | 1 April 1973 |
| Birth Place: | Bilthoven, Netherlands |
| Position: | Right back |
| Youthclubs1: | FAK |
| Youthclubs2: | USV Elinkwijk |
| Years1: | 1991–1996 |
| Caps1: | 117 |
| Goals1: | 4 |
| Years2: | 1996–1997 |
| Caps2: | 30 |
| Goals2: | 1 |
| Years3: | 1997–1998 |
| Caps3: | 32 |
| Goals3: | 1 |
| Years4: | 1999–2002 |
| Caps4: | 38 |
| Goals4: | 0 |
| Totalcaps: | 217 |
| Totalgoals: | 6 |
| Nationalyears1: | 1996–1997 |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
Ferdinand 'Ferdi' Rudols Marcel Vierklau (born 1 April 1973) is a Dutch retired footballer who played as a right back.
Vierklau was born in Bilthoven, Utrecht. In his country, he played for FC Utrecht, Vitesse Arnhem and AFC Ajax (March 1999 to June 2002), appearing in 185 Eredivisie matches over 11 seasons and scoring five goals; he won the double with the Amsterdam club in the 2001–02 campaign, but was already a fringe player at the time.
Vierklau also played one and a half seasons with CD Tenerife in Spain,[1] being relegated in his second year in La Liga and subsequently signing with Ajax. He retired at the age of 29.
Vierklau earned two caps for the Netherlands, in a period of eight months. His debut was on 5 October 1996, as he played 71 minutes in a 3–1 away win against Wales for the 1998 FIFA World Cup qualification stages.
Ajax